leg site hole core section top interval depth(centimeters) bottom interval depth(centimeters) top of core depth(meters) sample midpoint depth(meters) analyst code piece number lithology shipboard or onshore measurement data source nrm intensity nrm inclination nrm declination stable inclination stable declination quality of orientation mean demagnetizing field initial susceptibility koenigsberger ration comments 69 504 A 6 1 17.0 265.00 265.17 PECHERSKY, D. M. 5 IGNEOUS ONSHORE INITIAL REPORTS (IR) 11.49@-3 68 984.@-6 23.4 PLAG-OL-CPX MICROPHYRIC BASALT,ALT MOD* 4 69 504 A 6 2 75.0 265.00 267.25 PECHERSKY, D. M. 37 IGNEOUS ONSHORE INITIAL REPORTS (IR) 4.14@-3 75 1092.@-6 7.6 PLAG-OL MICROPHYRIC BASALT,ALT MOD* 4 69 504 A 6 3 85.0 265.00 268.85 PECHERSKY, D. M. 56 IGNEOUS ONSHORE INITIAL REPORTS (IR) 2.96@-3 106 900.@-6 6.6 PLAG-OL MICROPHYRIC BASALT,ALT MOD* 4